
GeForce GT 820M vs Radeon Vega 3 3020e

GeForce GT 820M
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Radeon Vega 3 3020e
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Performance Spectrum - GPU
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. The GeForce GT 820M is positioned at rank #134 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GeForce GT 820M
Performance Per Dollar
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon Vega 3 3020e uses modern memory architecture. The Radeon Vega 3 3020e likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GT 820M lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The GeForce GT 820M is the superior choice for raw performance. It leads with a 1.3% higher G3D Mark score and 100+% more VRAM (512 MB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon Vega 3 3020e.
| Insight | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| Performance | ✅Leading raw performance (+1.3%) | ❌Lower raw frame rates (-1.3%) |
| Longevity | 🛑Obsolete Architecture (2014 / Maxwell 2.0 (2014−2019)) | 🛑Obsolete Architecture (2018 / GCN 5.0 (2017−2020)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100+%) | ❌ Less VRAM capacity |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce GT 820M remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
Performance Check
Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.
Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.
Technical Specifications
Side-by-side comparison of GeForce GT 820M and Radeon Vega 3 3020e

GeForce GT 820M
The GeForce GT 820M is manufactured by NVIDIA. It was released in October 7 2014. It features the Maxwell 2.0 architecture. The core clock ranges from 1038 MHz to 1127 MHz. It has 1536 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 542 points.

Radeon Vega 3 3020e
The Radeon Vega 3 3020e is manufactured by AMD. It was released in November 14 2018. It features the GCN 5.0 architecture. The core clock ranges from 815 MHz to 1283 MHz. It has 1280 shading units. The thermal design power (TDP) is 100W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 535 points.
Graphics Performance
The GeForce GT 820M scores 542 and the Radeon Vega 3 3020e reaches 535 in the G3D Mark benchmark — just a 1.3% difference, making them near-identical in rasterization performance. The GeForce GT 820M is built on Maxwell 2.0 while the Radeon Vega 3 3020e uses GCN 5.0, both on 28 nm vs 14 nm. Shader units: 1,536 (GeForce GT 820M) vs 1,280 (Radeon Vega 3 3020e). Raw compute: 1.659 TFLOPS (GeForce GT 820M) vs 3.284 TFLOPS (Radeon Vega 3 3020e). Boost clocks: 1127 MHz vs 1283 MHz.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| G3D Mark Score | 542+1% | 535 |
| Architecture | Maxwell 2.0 | GCN 5.0 |
| Process Node | 28 nm | 14 nm |
| Shading Units | 1536+20% | 1280 |
| Compute (TFLOPS) | 1.659 TFLOPS | 3.284 TFLOPS+98% |
| Boost Clock | 1127 MHz | 1283 MHz+14% |
| ROPs | 64+100% | 32 |
| TMUs | 96+20% | 80 |
| L1 Cache | 576 KB+80% | 320 KB |
| L2 Cache | 2 MB+100% | 1 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce GT 820M comes with 512 MB of VRAM, while the Radeon Vega 3 3020e has 0 MB. The GeForce GT 820M offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs System. L2 Cache: 2 MB (GeForce GT 820M) vs 1 MB (Radeon Vega 3 3020e) — the GeForce GT 820M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| VRAM Capacity | 0.5 GB | Shared System RAM |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 64-bit | System |
| L2 Cache | 2 MB+100% | 1 MB |
Display & API Support
DirectX support: 11.0 (GeForce GT 820M) vs 12 (12_1) (Radeon Vega 3 3020e). Vulkan: None vs 1.2. OpenGL: 4.0 vs 4.6. Maximum simultaneous displays: 1 vs 3.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| DirectX | 11.0 | 12 (12_1)+9% |
| Vulkan | None | 1.2 |
| OpenGL | 4.0 | 4.6+15% |
| Max Displays | 1 | 3+200% |
Media & Encoding
Hardware encoder: No (GeForce GT 820M) vs VCN 1.0 (Radeon Vega 3 3020e). Decoder: PureVideo HD VP4 vs VCN 1.0. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 820M) vs H.264,H.265,VP9 (Radeon Vega 3 3020e).
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| Encoder | No | VCN 1.0 |
| Decoder | PureVideo HD VP4 | VCN 1.0 |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP | H.264,H.265,VP9 |
Power & Dimensions
The GeForce GT 820M draws 100W versus the Radeon Vega 3 3020e's 100W — a 0% difference. The Radeon Vega 3 3020e is more power-efficient. Recommended PSU: 350W (GeForce GT 820M) vs 1W (Radeon Vega 3 3020e). Power connectors: PCIe-powered vs Integrated.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| TDP | 100W | 100W |
| Recommended PSU | 350W | 1W-100% |
| Power Connector | PCIe-powered | Integrated |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | — |
| Temp (Load) | 70°C | — |
| Perf/Watt | 5.4+2% | 5.3 |
Value Analysis
The Radeon Vega 3 3020e is the newer GPU (2018 vs 2014).
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| MSRP | — | $0 |
| Avg Price (30d) | — | $0 |
| Codename | GM204 | Vega 12 |
| Release | October 7 2014 | November 14 2018 |
| Ranking | #344 | #435 |
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